Heat illness. III. Acclimatization.

In this third paper on heat illness, the position of acclimatization in prevention of heat illness is reviewed. Both short and long-term acclimatization are considered, the former in more detail with discussion of present knowledge of the differences arising from artificial and natural acclimatization, the effects of training, water intake and increasing salt intake, and climatic chamber and vapour-barrier suit acclimatization. The possibility of the development of a safe drug to accelerate acclimatization is considered remote. The effects of age and acclimatization in the healthy and unhealthy elderly and the very young are reviewed briefly as is also the possibility that air conditioning may have an adverse effect on acclimatization.